Installing gallery theme auto-deletes my mobile theme...? Why?

WHen I click "Install" from the gallery, it fails, and this is dumped in my log:
BlogEngine.Core.Packaging.Installer.InstallPackage(Yoko): Could not find a part of the path 'C:\blog\App_Data\packages\Yoko.0.8.0.0\content\'.---------------------------------------
Date: 7/11/2013 3:54:06 PM
BlogEngine.Core.Packaging.Installer.UninstallPackage(Yoko): Access to the path 'C:\blog\themes\JQ-Mobile\controls\PostList.ascx.cs' is denied.

And then I noticed my JQ-Mobile directory was wiped! I had to spend a bunch of time reinstalling JQ Mobile. I'm scared to click the "install" button now. Any ideas how to fix this?

Looks like a problem with write access on "themes" directory - to install/unistall themes, "app_data" and "themes" directories need write access for app user. Also if you name your own local theme with same name that exists
in the gallery, it might cause issues.

i tried to install the Yoko theme, but I can't figure out why, when I do so, it wants to uninstall (and does delete) numerous files in my JQ-Mobile theme, which is set for my mobile site. I do have the correct permissions. Incidentally, I just installed
another theme successfully, so it only does this to the Yoko theme. And i tested it again, and it did it again (try to install Yoko theme, and deletes my set mobile theme)

I would guess "Yoko" uses same "App_Code\JQ-Mobile\ThemeHelper.cs" file.
For some reason it fails to install, so it cleans up removing this file as it's own, not aware it used by "mobile".

You sure other themes installed fine? I don't see any entries from other themes been installed from gallery in that packages file. If "themes" folder not writable for application, this surely explains all the mystery.

actually I just tried installing widgets. No matter what I do to try and install a gallery widget, the system tries to delete JQ-Mobile (using the Network Service account). I finally took write permissions off for JQ Mobile only on Network Service. Themes
is definitely writable because it deletes 90% of all the files inside my JQ-Mobile directory, only when I finally removed permissions for Network Service on the JQ-Mobile folder did it stop deleting files in there, but of course it dumps the errors. Its still
trying to delete my JQ-Mobile directory, but now its not succeeding.

Here is what I got in my log for attempting to install the Facebook Likes widget.

well i finally gave networkservice full access to: widgets, app_code, and themes. it whacked JQ mobile completely, the entire folder. and after that it seemed like it was "satisfied". I then reinstalled everything and its all working thus far
:D

I have this same issue - but it's not limited to any particular theme... it's whenever I install ANY theme it wipes out the other themes installed (more than one). I posted about it just Tuesday
here, but haven't had any replies yet. :/

So, you found that manually copying the theme files up to the site was the work-around? I'll give it a try, as of right now, my mobile theme is dead because I keep trying to install different themes for the normal version. :(

Johnny, manually installing it didn't work well. It did work to give me my manual install, but as soon as I tried to install something new (i.e. a new widget), it would once again wipe out my JQ-Mobile folder (or try). What finally worked is giving the
Network Service account full control to themes, app_code, and widgets and then allowing BlogEngine to fully delete the JQ-Mobile folder like it wanted to. Once this happened, I then went into my INstalled Themes tab and deleted JQ-Mobile from the UI. Now JQ
Mobile is utterly deleted everywhere. Perfect. From there, I was able to re-install JQ Mobile from the gallery and now I can install anything I want with no more issues.

I converted to WAP
I have Yoko theme installed and as my active theme. I have also modified it a bit... nothing heavy... just formatting really,
I have deleted the JQ Mobile theme, so it now attacks the Yoko theme.

As soon as I try to install ANY widget or extension, it fails, and deleted 80% of my theme files for Yoko. I have been successful in installing additional themes.

Has anyone made any progress on this. We especially are looking to install social media extensions to cleanly publish blog entries. I just started with Blog engine last week, it is an awesome product, but this issue is really a pain.